Hes had some funny lines in movies but even in comedies like Tag he was kinda the straight guy. But have you seen him do press for Marvel movies? the guy is naturaly hilarious. Not over the top loud funny like Anthony Mackie but more just naturally funny. He just hasnt taken on any overlay comedic roles yet that I can recall. Alot of the MCU actors can be hilarious if I'm being honest probaly why they were cast since Marvel like to keep the laughs flowing .
Yeah, Renner's Hawkeye isn't as quippy as comic Hawkeye but he's still pretty snarky.